technical NOTES

IE4 Motors construction features (Super Premium Efficiency): The IE4 motors lie
in the IE4 class of the international efficiency standard. The output of the IE4
motors is 0.12 kW to 400W. The poles for the IE4 motors are 2, 4, 6, 8. The speed
range of the IE4 motors is from 750rpm to 3000rpm.

The aluminum frame size for IE4 motors is 100-160. The cast iron frame size for
IE4 motors are 100-315. The temperature class for IE4 motors is B class. The
cooling technology for the IE4 motors is IC411 and IC416. The insulation class is
class F. The duty type of the motors is Type S1.

The protection technology used in IE4 motors is IP55, IP56, IP65. The international
standards for IE4 motors include IEC 60034-30-1.

Payback calculation for IE4 range motor against IE3 range motor considering Motor list.

IE4 v/s IE3 Comparision

S. N. Description Data

1 Unit Rate 5

2 Days 330

3 Hrs. 22

4 Total Hrs. 7260

5 Motor Loading Factor 90%

6 OEM IE3 45682750

7 % Loss in Energy 10%

8 OEM IE4 54819300

9 % Extra cost 17%

10 Payback Months 24.1

Application Qty.

Motor

Rating

Kw

Pole

OEM’s IE4 Vs IE3 Saving calculations

IE4 IE3 SavedKW Saved Unit Savings in INR

75kW4P 11 75 4 96.00% 95.00% 9.05 59,107 2,95,535

45kW4P 9 45 4 95.40% 94.10% 5.86 38,321 1,91,606

5.5kW4P 10 5.5 4 91.90% 89.60% 1.54 10,038 50,190

2.2kW4P 5 2.2 4 89.50% 86.70% 0.4 2,594 12,968

18.5kW4P 11 18.5 4 94.20% 92.60% 3.73 24,389 1,21,947

250kW4P 4 250 4 96.70% 96.00% 7.54 49,270 2,46,348

160kW4P 7 160 4 96.60% 95.80% 9.68 63,262 3,16,311

132kW4P 7 132 4 96.40% 95.60% 8.02 52,409 2,62,045